Different result in PGX & ISX

Hi experts:

          I write a program to upload a excel into a table(mian function is 'GUI_UPLOAD') and this program has completed this function. After connecting in PGX successfully I input the same parameter as in ISX  and I find I got different result.,my core function was not be called by the url. What's the matter with it? I can't find  any bugs of it.

Thanks!